To add names to the Blocked Senders List in Outlook
https://support.office.com/en-us/article/block-a-mail-sender-b29fd867-cac9-40d8-aed1-659e06a706e4
On the Home tab, in the Delete group, click Junk, and then click Junk E-mail Options . On the Blocked Senders tab, click Add . In the Enter an e-mail address or Internet domain name to be added to the list box, enter the name or address that you want to add. For example, you can add : - a specific email address, such as [email protected] an Internet domain, such as @example.com, or example.com. Click OK and repeat for each entry that you want to add.
On the Home tab, in the Delete group, click Junk, and then click Junk E-mail Options .
On the Blocked Senders tab, click Add .
In the Enter an e-mail address or Internet domain name to be added to the list box, enter the name or address that you want to add. For example, you can add : - a specific email address, such as [email protected] an Internet domain, such as @example.com, or example.com.
Click OK and repeat for each entry that you want to add.
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